Letter

Recording by Chief Keef.

Recording identifiers

ISRC
USZEG1800428
CopyrightID (CopyrightChains transaction hash)
0x70180464f63e54316187cd73bab880b268486ad8fc0080a1c8322743c2511e79
Copyright registration time
2026-06-07T23:28:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:4e79ebbb58c045d061dd42541ee2debd296ace7ffe3ab22b694e517ca20176e5

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.